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GMEG - Geophysics Unit of Menlo Park, CA- (GUMP)


Geophysics Unit of Menlo Park, CA (GUMP)

U.S. Geological Survey - Western Region - Geology and Geophysics

GUMP facilities include:

Computers: SUN, Windows, LINUX, and Mac platforms.

: 6 Lacost&Romberg and 3 Scintrex high-precision gravity meters; 3 Cesium magnetometers; 4 proton-precession basestation magnetometers; truck-, ATV-, snowmachine- and boat-towed magnetometer systems; Zonge Zen broadband MT system; 5 field susceptibility meters; drill-core susceptibility meter; paleomagnetic field sampling equipment; and a fleet of 5 field vehicles.

: Rock preparation lab, Paleomagnetics lab and equipment.

Oasis Montaj ( – mapping software for processing, visualizing and analyzing potential field datasets.
GMSYS ( – three-dimensional interactive potential field modeling software program for inverse and forward problems.
EarthVision ( – three-dimensional geologic model building and visualization software.
In addition, we carry a wide range of other in-house and commercially developed software packages for processing and displaying geologic and potential-field data.


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